Fits 1970-1981 Chevrolet Camaro and Pontiac Firebird models.

Over 40 years of exposure to moisture and road debris can compromise the structural integrity of a factory subframe, often leading to rusted-out or wallowed body mount holes. The UMI Performance 2662 front subframe repair kit provides a precision-engineered solution to restore your frame's mounting surfaces to like-new condition. This 8-piece kit is designed to be welded into place, ensuring a sturdy surface and properly sized holes for correct body alignment and mount security.

• Manufactured from 1/8-inch thick laser-cut steel for maximum durability
• Restores all front subframe body mount locations to factory specifications
• Supplied in bare metal finish to facilitate immediate welding
• Requires cutting and welding for proper installation
• Proudly designed and manufactured in Philipsburg, PA-USA
• Manufacturer Part Number: 2662

This kit is compatible with all 1970-1981 GM F-Body models, including Chevrolet Camaro (Base, Z28, SS, RS, LT, Berlinetta, Sport) and Pontiac Firebird (Base, Formula, Esprit, Trans Am).

Fits 1967-1969 Chevrolet Camaro (Base, RS, SS, Z28) and 1967-1969 Pontiac Firebird (Base, 326, 350, 400, HO, Sprint, Trans Am).

Ridetech Bolt-In Subframe Connectors are engineered to significantly improve the handling and structural integrity of your 1967-1969 GM F-Body. By tying the front subframe directly into the rear leaf spring mounts, these connectors eliminate chassis flex and prevent the body twist common in high-performance applications. This rigid connection allows your suspension to work more efficiently, providing a more stable and predictable driving experience.

Designed for a straightforward installation, these connectors bolt directly to the factory mounting points without the need for cutting or welding. They feature a durable satin black powder-coated finish for long-lasting corrosion resistance and a clean, OE-style look under the vehicle.

• Product Type: Bolt-on subframe connectors
• Finish: Satin black powder coat
• Installation: Direct bolt-in; no welding required
• Quantity: Pair (left and right)
• Included Hardware: All necessary Grade 8 mounting hardware
• Manufacturer Part Number: 11167300

Fits 1975-1981 Chevrolet Camaro and Pontiac Firebird models (Base, Z28, Trans Am, Formula, and more).

Standard unibody 2nd Gen F-body chassis are prone to flex and twisting under heavy cornering or high-torque acceleration, compromising handling and predictability. The QA1 52095 subframe connector kit solves this by rigidly linking the front subframe to the rear, drastically increasing overall chassis stiffness and improving suspension response during aggressive driving.

These connectors feature a tubular design engineered to follow the specific floorpan contours of the 1975-1981 GM F-body, maintaining maximum ground clearance and a clean, factory-style appearance. This kit also includes solid aluminum body mounts to replace worn rubber or polyurethane bushings, further eliminating movement between the body and the subframe for a more precise driving feel. Made in Lakeville, Minnesota, this bolt-on upgrade requires no welding for installation.

• Manufacturer Part Number: 52095
• Fits 1975-1981 Chevrolet Camaro and Pontiac Firebird (2nd Gen)
• Includes solid aluminum body mounts to reduce chassis deflection
• Tubular construction contoured for maximum ground clearance
• Full bolt-in installation with all necessary hardware included
• Durable finish for long-lasting corrosion resistance
• Proudly made in the USA

Fits select 1967-1969 Chevrolet Camaro and Pontiac Firebird models. Note: Does not fit convertible models.

Standard unibody chassis found in late-60s F-body vehicles often suffer from significant flex and twist under load, especially when paired with modern high-grip tires and performance suspension. QA1 subframe connectors provide a bolt-in solution to increase frame rigidity, resulting in improved handling, more predictable cornering, and more stable acceleration by bridging the gap between the front and rear subframes.

These connectors feature a tubular design that is engineered to follow the floor pan contours closely, maintaining maximum ground clearance while providing a factory-like appearance. The kit includes solid aluminum body mounts, which offer a more durable and rigid alternative to standard polyurethane or rubber bushings without adding the excessive noise typical of steel mounts.

• Replaces part number: 52093
• Increases chassis stiffness for improved suspension geometry under load
• Tubular steel construction for high strength-to-weight ratio
• Precision contoured for maximum ground clearance
• Includes solid aluminum body mounts and all necessary high-grade hardware
• Simple bolt-in installation with no welding required
• Proudly made in Lakeville, Minnesota, USA

Fits Nissan 350Z and Infiniti G35 models.

The ISR Performance Full Subframe Solid Inserts are engineered to eliminate the compliance and movement inherent in factory rubber rear subframe bushings. These CNC-machined inserts fill the voids in the OEM bushings, effectively locking the subframe to the chassis. This modification is essential for track and drift applications where predictable suspension geometry and reduced wheel hop are critical during high-load cornering or hard launches.

• CNC-machined aluminum construction for maximum durability
• Eliminates subframe deflection and drivetrain slop
• Improves chassis rigidity and power delivery to the ground
• Installs directly into factory subframe bushing locations
• Manufacturer Part Number: IS-AZ002

Note: Installing solid subframe inserts will result in increased NVH (noise, vibration, and harshness) within the cabin, as the damping properties of the factory rubber are removed in favor of direct chassis connection.

Fits 1978-1988 GM G-Body vehicles including the Chevrolet Monte Carlo/Malibu, Buick Regal/Grand National, Oldsmobile Cutlass, and Pontiac Grand Prix.

The BMR Suspension Rear Frame Notch Kit (FR461) is an essential upgrade for G-Body owners looking to fit significantly wider rear wheels and tires. Factory frame rails often limit tire width, causing rubbing issues on pro-touring or drag racing setups. This kit allows you to narrow the rear frame rails by replacing the inner section of the factory rail with precision-cut steel plates, providing the necessary clearance for aggressive tire fitment.

• Engineered for 1978-1988 GM G-Body platforms
• Increases inner wheel-well clearance for wider rear tire combinations
• Heavy-duty steel construction ensures structural chassis integrity
• Precision-designed for a predictable installation during chassis modification
• Requires cutting and welding for proper installation
• Manufacturer Part Number: FR461

Fits 1979-1993 Ford Mustang models, including Base, GT, LX, SVO, and SVT Cobra. These BBK full-length subframe connectors are a foundational modification for any Fox-body Mustang, engineered to significantly reduce chassis flex and strengthen the unibody. By bridging the front and rear subframes, these connectors allow the suspension to work more efficiently, resulting in sharper handling and improved ride quality.

This kit features integrated seat support brackets, which tie the seat mounts directly into the subframe for maximum structural rigidity. Each connector is constructed from heavy-duty steel and finished in a durable black powder coat to resist corrosion and environmental wear.

• Direct fit for 1979-1993 Ford Mustang chassis
• Full-length design for maximum longitudinal stiffness
• Includes seat support brackets for additional reinforcement
• Durable black powder coat finish
• Includes hardware for bolt-on installation; welding is recommended for maximum strength
• Designed and manufactured in the USA
• Manufacturer Part Number: 2542

Installation Note: While these units include hardware for a bolt-on installation, BBK recommends welding the connectors to the chassis for the highest level of structural integrity and performance.

Fits 1994-2004 Ford Mustang models including Base, GT, Bullitt, GTS, Mach 1, and SVT Cobra.

BBK Full Length Subframe Connectors are a foundational upgrade designed to eliminate chassis flex in the SN95 and New Edge Mustang platforms. By tying the front and rear subframes together, these connectors significantly increase the rigidity of the unibody. This structural reinforcement allows the suspension to maintain proper geometry under load, resulting in more predictable handling, improved traction, and better overall ride quality.

These standard-style connectors are finished in a durable black powder coat to protect against corrosion and road debris. The kit includes the necessary hardware for a bolt-on installation, though welding is highly recommended for enthusiasts seeking the highest level of chassis stiffness. Every kit is proudly made in the USA.

• Increases chassis rigidity and unibody strength
• Full-length design for maximum reinforcement
• Durable black powder coat finish for element protection
• Includes hardware for bolt-on installation
• Weld-on compatible for maximum performance
• Made in the USA
• Manufacturer Part Number: 2520

Fits 1979-1993 Ford Mustang models including GT, LX, SVO, and SVT Cobra.

BBK full length subframe connectors are a foundational upgrade for the Fox Body chassis. By linking the front and rear subframes, these connectors significantly increase chassis stiffness and unibody strength. This reduction in structural flex allows your suspension to work more efficiently, resulting in improved handling, better traction, and more consistent ride quality under load.

Manufactured in the USA, these standard-style connectors feature a durable black powder coat finish to protect against corrosion and the elements. While the kit includes hardware for a bolt-on installation, BBK recommends welding the connectors for maximum structural reinforcement and strength.

• Manufacturer Part Number: 2506
• Style: Full Length Standard Style
• Finish: Black Powder Coat
• Installation: Bolt-in hardware included; welding recommended for maximum strength
• Fitment: 1979-1993 Ford Mustang (All submodels)
• Origin: Designed and Manufactured in the USA